A wireless power relay apparatus includes: a first antenna configured to wirelessly receive an alternating current (AC) power signal of a first frequency from a wireless power transmission apparatus; a rectifier configured to convert the received AC power signal into a direct current (DC) power; a storage device configured to store electric energy of the DC power output from the rectifier; a power oscillator configured to generate an AC power signal of a second frequency based on an output current of the rectifier and electric energy of a DC voltage stored in the storage device; and a second antenna configured to transmit the AC power signal of the second frequency to a wireless power reception apparatus.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The apparatus of claim 1, wherein the power oscillator is configured to start to oscillate, in response to the first antenna starting to receive the AC power signal of the first frequency and the DC voltage stored in the storage device reaching the reference value.
3. The apparatus of claim 2, wherein the power oscillator is configured to remain in an off state until the DC voltage reaches the reference value, start to oscillate at a point in time at which the DC voltage reaches the reference value, and generate the AC power signal of the second frequency, without being controlled by a control signal.
4. The apparatus of claim 1, wherein the power oscillator is configured to oscillate at the second frequency based on the DC voltage supplied from the storage device and the current supplied from the rectifier.
5. The apparatus of claim 1, wherein the rectifier, the storage device, and the second antenna are connected to a common node.
7. The apparatus of claim 1, wherein the wireless power relay apparatus is configured to be detachably mounted on a surface of the wireless power transmission apparatus.
8. The apparatus of claim 7, wherein the first antenna is configured to wirelessly receive the AC power signal of the first frequency from the wireless power transmission apparatus when the wireless power relay apparatus is detachably mounted on the surface of the wireless power transmission apparatus.
10. The apparatus of claim 1, wherein the wireless power reception apparatus is an implantable apparatus or a body attachment apparatus.
11. The apparatus of claim 1, wherein the second frequency is different from the first frequency, and the second frequency is equal to an operating frequency for a wireless power reception of the wireless power reception apparatus.
15. The system of claim 13, wherein the wireless power relay apparatus is configured to be detachably mounted on a surface of the wireless power transmission apparatus.
18. The method of claim 17, wherein the generating of the AC power signal of the second frequency comprises the power oscillator starting to oscillate, in response to the first antenna starting to receive the AC power signal of the first frequency and the DC voltage reaching the reference value.
20. The method of claim 17, wherein the second frequency is different from the first frequency and is identical to an operating frequency for a wireless power reception of the wireless power reception apparatus.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
February 22, 2021
November 29, 2022
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